package com.xhga.transaction.common.util;

/**
 * Created by HuaWeiBo on 2019/4/26.
 */
public class StringUtil {
    public static String toLowerCaseFirstOne(String s){
        if(!Character.isLowerCase(s.charAt(0))) {
            s = (new StringBuilder()).append(Character.toLowerCase(s.charAt(0))).append(s.substring(1)).toString();
        }
        return s;
    }
}
